Video aware multiplexing for wireless communication

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a communication device may classify a plurality of packets of streaming video content based at least in part on one or more video characteristics; generate a plurality of code blocks based at least in part on classifying the plurality of packets, wherein each code block includes at least some subset of the plurality of packets having different effect on the quality of experience; and provide the plurality of code blocks for transmission. Numerous other aspects are provided.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims priority from U.S. Provisional PatentApplication No. 63/007,717 entitled “VIDEO AWARE TRANSMISSION ANDMULTIPLE INPUT MULTIPLE OUTPUT LAYER PROCESSING,” filed Apr. 9, 2020,and from U.S. Provisional Patent Application No. 63/007,715 entitled“VIDEO AWARE TRANSMISSION AND PROCESSING,” filed Apr. 9, 2020, which areincorporated herein by reference in their entirety.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques and apparatuses for video awaretransmission and processing.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, and/or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless communication network may include a number of base stations(BSs) that can support communication for a number of user equipment(UEs). A user equipment (UE) may communicate with a base station (BS)via the downlink and uplink. The downlink (or forward link) refers tothe communication link from the BS to the UE, and the uplink (or reverselink) refers to the communication link from the UE to the BS. As will bedescribed in more detail herein, a BS may be referred to as a Node B, agNB, an access point (AP), a radio head, a transmit receive point (TRP),a New Radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. New Radio (NR), which may also bereferred to as 5G, is a set of enhancements to the LTE mobile standardpromulgated by the Third Generation Partnership Project (3GPP). NR isdesigned to better support mobile broadband Internet access by improvingspectral efficiency, lowering costs, improving services, making use ofnew spectrum, and better integrating with other open standards usingorthogonal frequency division multiplexing (OFDM) with a cyclic prefix(CP) (CP-OFDM) on the downlink (DL), using CP-OFDM and/or SC-FDM (e.g.,also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) onthe uplink (UL), as well as supporting beamforming, multiple-inputmultiple-output (MIMO) antenna technology, and carrier aggregation.However, as the demand for mobile broadband access continues toincrease, there exists a need for further improvements in LTE and NRtechnologies. Preferably, these improvements should be applicable toother multiple access technologies and the telecommunication standardsthat employ these technologies.

SUMMARY

In some aspects, a method of wireless communication, performed by acommunication device, may include classifying a plurality of packets ofstreaming video content based at least in part on one or more videocharacteristics, wherein the one or more video characteristics relate toan effect of a packet on a quality of experience of providing thestreaming video content; generating a plurality of code blocks based atleast in part on classifying the plurality of packets, wherein a firstcode block, of the plurality of code blocks, includes a first subset ofthe plurality of packets and a second code block, of the plurality ofcode blocks, includes a second subset of the plurality of packets,wherein the effect of the first subset of the plurality of packets onthe quality of experience is different from the effect of the secondsubset of the plurality of packets on the quality of experience; andproviding the plurality of code blocks for transmission.

In some aspects, an apparatus for wireless communication may includemeans for classifying a plurality of packets of streaming video contentbased at least in part on one or more video characteristics, wherein theone or more video characteristics relate to an effect of a packet on aquality of experience of providing the streaming video content; meansfor generating a plurality of code blocks based at least in part onclassifying the plurality of packets, wherein a first code block, of theplurality of code blocks, includes a first subset of the plurality ofpackets and a second code block, of the plurality of code blocks,includes a second subset of the plurality of packets, wherein the effectof the first subset of the plurality of packets on the quality ofexperience is different from the effect of the second subset of theplurality of packets on the quality of experience; and means forproviding the plurality of code blocks for transmission.

In some aspects, a communication device for wireless communication mayinclude memory and one or more processors operatively coupled to thememory. The memory and the one or more processors may be configured toclassify a plurality of packets of streaming video content based atleast in part on one or more video characteristics, wherein the one ormore video characteristics relate to an effect of a packet on a qualityof experience of providing the streaming video content; generate aplurality of code blocks based at least in part on classifying theplurality of packets, wherein a first code block, of the plurality ofcode blocks, includes a first subset of the plurality of packets and asecond code block, of the plurality of code blocks, includes a secondsubset of the plurality of packets, wherein the effect of the firstsubset of the plurality of packets on the quality of experience isdifferent from the effect of the second subset of the plurality ofpackets on the quality of experience; and provide the plurality of codeblocks for transmission.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by of one or more processors a communicationdevice, may cause the one or more processors to classify a plurality ofpackets of streaming video content based at least in part on one or morevideo characteristics, wherein the one or more video characteristicsrelate to an effect of a packet on a quality of experience of providingthe streaming video content; generate a plurality of code blocks basedat least in part on classifying the plurality of packets, wherein afirst code block, of the plurality of code blocks, includes a firstsubset of the plurality of packets and a second code block, of theplurality of code blocks, includes a second subset of the plurality ofpackets, wherein the effect of the first subset of the plurality ofpackets on the quality of experience is different from the effect of thesecond subset of the plurality of packets on the quality of experience;and provide the plurality of code blocks for transmission.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, communication device, and/or processing system as substantiallydescribed herein with reference to and as illustrated by the drawings,specification, and appendices.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a block diagram conceptually illustrating an example of awireless communication network, in accordance with various aspects ofthe present disclosure.

FIG. 2 is a block diagram conceptually illustrating an example of a basestation in communication with a UE in a wireless communication network,in accordance with various aspects of the present disclosure.

FIG. 3 is a block diagram conceptually illustrating an example ofwireless communication network in which a BS provides streaming video toa UE, in accordance with various aspects of the present disclosure.

FIGS. 4A and 4B are block diagrams conceptually illustrating blockproduction by a communication device to enable a BS to provide streamingvideo to a UE, in accordance with various aspects of the presentdisclosure.

FIGS. 5A and 5B are block diagrams conceptually illustrating dataprocessing by a communication device to enable a BS to provide streamingvideo to a UE, in accordance with various aspects of the presentdisclosure.

FIG. 6 is a diagram illustrating an example of a modulation schemeperformed, for example, by a communication device, in accordance withvarious aspects of the present disclosure.

FIG. 7 is a diagram illustrating an example process performed, forexample, by a communication device, in accordance with various aspectsof the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein one skilled in the art should appreciate that the scopeof the disclosure is intended to cover any aspect of the disclosuredisclosed herein, whether implemented independently of or combined withany other aspect of the disclosure. For example, an apparatus may beimplemented or a method may be practiced using any number of the aspectsset forth herein. In addition, the scope of the disclosure is intendedto cover such an apparatus or method which is practiced using otherstructure, functionality, or structure and functionality in addition toor other than the various aspects of the disclosure set forth herein. Itshould be understood that any aspect of the disclosure disclosed hereinmay be embodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, and/or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It should be noted that while aspects may be described herein usingterminology commonly associated with 3G and/or 4G wireless technologies,aspects of the present disclosure can be applied in othergeneration-based communication systems, such as 5G and later, includingNR technologies.

FIG. 1 is a diagram illustrating a wireless network 100 in which aspectsof the present disclosure may be practiced. The wireless network 100 maybe an LTE network or some other wireless network, such as a 5G or NRnetwork. The wireless network 100 may include a number of BSs 110 (shownas BS 110 a, BS 110 b, BS 110 c, and BS 110 d) and other networkentities. A BS is an entity that communicates with user equipment (UEs)and may also be referred to as a base station, a NR BS, a Node B, a gNB,a 5G node B (NB), an access point, a transmit receive point (TRP),and/or the like. Each BS may provide communication coverage for aparticular geographic area. In 3GPP, the term “cell” can refer to acoverage area of a BS and/or a BS subsystem serving this coverage area,depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). A BS for a macro cell may bereferred to as a macro BS. A BS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1, a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BS s may be interconnected to oneanother and/or to one or more other BS s or network nodes (not shown) inthe wireless network 100 through various types of backhaul interfacessuch as a direct physical connection, a virtual network, and/or the likeusing any suitable transport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1, a relay station 110 d may communicate with macro BS 110 a and aUE 120 d in order to facilitate communication between BS 110 a and UE120 d. A relay station may also be referred to as a relay BS, a relaybase station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 Watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, and/or the like. A UE may be a cellularphone (e.g., a smart phone), a personal digital assistant (PDA), awireless modem, a wireless communication device, a handheld device, alaptop computer, a cordless phone, a wireless local loop (WLL) station,a tablet, a camera, a gaming device, a netbook, a smartbook, anultrabook, a medical device or equipment, biometric sensors/devices,wearable devices (smart watches, smart clothing, smart glasses, smartwrist bands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, location tags, and/or the like, that may communicate with abase station, another device (e.g., remote device), or some otherentity. A wireless node may provide, for example, connectivity for or toa network (e.g., a wide area network such as Internet or a cellularnetwork) via a wired or wireless communication link. Some UEs may beconsidered Internet-of-Things (IoT) devices, and/or may be implementedas NB-IoT (narrowband internet of things) devices. Some UEs may beconsidered a Customer Premises Equipment (CPE). UE 120 may be includedinside a housing that houses components of UE 120, such as processorcomponents, memory components, and/or the like. In some aspects, theprocessor components and the memory components may be coupled together.For example, the processor components (e.g., one or more processors) andthe memory components (e.g., a memory) may be operatively coupled,communicatively coupled, electronically coupled, electrically coupled,and/or the like.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular radioaccess technology (RAT) and may operate on one or more frequencies. ARAT may also be referred to as a radio technology, an air interface,and/or the like. A frequency may also be referred to as a carrier, afrequency channel, and/or the like. Each frequency may support a singleRAT in a given geographic area in order to avoid interference betweenwireless networks of different RATs. In some cases, NR or 5G RATnetworks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure(V2I) protocol, and/or the like), a mesh network, and/or the like. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110. As indicated above, FIG. 1is provided as an example. Other examples may differ from what isdescribed with regard to FIG. 1.

FIG. 2 shows a block diagram of a design 200 of base station 110 and UE120, which may be one of the base stations and one of the UEs in FIG. 1.Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI) and/or the like) and controlinformation (e.g., CQI requests, grants, upper layer signaling, and/orthe like) and provide overhead symbols and control symbols. Transmitprocessor 220 may also generate reference symbols for reference signals(e.g., the cell-specific reference signal (CRS)) and synchronizationsignals (e.g., the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing(e.g., precoding) on the data symbols, the control symbols, the overheadsymbols, and/or the reference symbols, if applicable, and may provide Toutput symbol streams to T modulators (MODs) 232 a through 232 t. Eachmodulator 232 may process a respective output symbol stream (e.g., forOFDM and/or the like) to obtain an output sample stream. Each modulator232 may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively. According to variousaspects described in more detail below, the synchronization signals canbe generated with location encoding to convey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM and/or the like) to obtain received symbols. A MIMO detector 256may obtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive processor 258 may process (e.g.,demodulate and decode) the detected symbols, provide decoded data for UE120 to a data sink 260, and provide decoded control information andsystem information to a controller/processor 280. A channel processormay determine reference signal received power (RSRP), received signalstrength indicator (RSSI), reference signal received quality (RSRQ),channel quality indicator (CQI), and/or the like. In some aspects, oneor more components of UE 120 may be included in a housing.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM, CP-OFDM, and/or the like), and transmitted to basestation 110. At base station 110, the uplink signals from UE 120 andother UEs may be received by antennas 234, processed by demodulators232, detected by a MIMO detector 236 if applicable, and furtherprocessed by a receive processor 238 to obtain decoded data and controlinformation sent by UE 120. Receive processor 238 may provide thedecoded data to a data sink 239 and the decoded control information tocontroller/processor 240. Base station 110 may include communicationunit 244 and communicate to network controller 130 via communicationunit 244. Network controller 130 may include communication unit 294,controller/processor 290, and memory 292.

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with video aware multiplexing, as describedin more detail elsewhere herein. For example, controller/processor 240of base station 110, controller/processor 280 of UE 120, and/or anyother component(s) of FIG. 2 may perform or direct operations of, forexample, process 700 of FIG. 7 and/or other processes as describedherein. Memories 242 and 282 may store data and program codes for basestation 110 and UE 120, respectively. In some aspects, memory 242 and/ormemory 282 may comprise a non-transitory computer-readable mediumstoring one or more instructions for wireless communication. Forexample, the one or more instructions, when executed (e.g., directly, orafter compiling, converting, interpreting, and/or the like) by one ormore processors of the base station 110 and/or the UE 120, may performor direct operations of, for example, process 700 of FIG. 7, and/orother processes as described herein. In some aspects, executinginstructions may include running the instructions, converting theinstructions, compiling the instructions, interpreting the instructions,and/or the like. A scheduler 246 may schedule UEs for data transmissionon the downlink and/or uplink.

In some aspects, a communication device (e.g., BS 110 or a videoprocessing component thereof) may include means for classifying aplurality of packets of streaming video content based at least in parton one or more video characteristics, wherein the one or more videocharacteristics relate to an effect of a packet on a quality ofexperience of providing the streaming video content; means forgenerating a plurality of code blocks based at least in part onclassifying the plurality of packets, wherein a first code block, of theplurality of code blocks, includes a first subset of the plurality ofpackets and a second code block, of the plurality of code blocks,includes a second subset of the plurality of packets, wherein the effectof the first subset of the plurality of packets on the quality ofexperience is different from the effect of the second subset of theplurality of packets on the quality of experience; and means forproviding the plurality of code blocks for transmission, and/or thelike. In some aspects, such means may include one or more components ofBS 110 described in connection with FIG. 2, such as antenna 234, DEMOD232, MIMO detector 236, receive processor 238, controller/processor 240,transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234,and/or the like. As indicated above, FIG. 2 is provided as an example.Other examples may differ from what is described with regard to FIG. 2.

FIG. 3 is a block diagram conceptually illustrating an example ofwireless communication network 300 in which a BS (e.g., BS 110) providesstreaming video to a UE (e.g., UE 120), in accordance with variousaspects of the present disclosure. As shown in FIG. 3, wirelesscommunication network 300 may include an Internet Protocol (IP)multimedia core network subsystem (IMS) core 305, a packet data networkgateway (PGW) 310, a serving gateway (SGW) 315, a BS 110 (e.g., whichmay include a communication device 320), and a UE 120. As further shownin FIG. 3, BS 110 and UE 120 may communicate via an access link (e.g., aUu interface).

PGW 310 includes one or more devices capable of providing connectivityfor UE 120 to external packet data networks (e.g., via IMS core 305).For example, PGW 310 may include one or more data processing and/ortraffic transfer devices, such as a gateway, a router, a modem, aswitch, a firewall, a network interface card (NIC), a hub, a bridge, aserver device, an optical add-drop multiplexer (OADM), or any other typeof device that processes and/or transfers traffic. In someimplementations, PGW 310 may aggregate traffic received from one or moreSGWs 315, and may send the aggregated traffic to IMS core 305.Additionally, or alternatively, as described in more detail herein, PGW310 may receive traffic from IMS core 305 and may send the traffic to UE120 via SGW 315 and BS 110. For example, PGW 310 may receive a videostream from IMS core 305 that is to be provided to BS 110 for processingand transmission to UE 120.

SGW 315 includes one or more devices capable of routing packets. Forexample, SGW 315 may include one or more data processing and/or traffictransfer devices, such as a gateway, a router, a modem, a switch, afirewall, a NIC, a hub, a bridge, a server device, an OADM, or any othertype of device that processes and/or transfers traffic. In someimplementations, SGW 315 may aggregate traffic received from one or moreBSs 110 associated with the wireless communication network 300 and maysend the aggregated traffic to IMS core 305 (e.g., via PGW 310) and/orother network devices. SGW 315 may receive traffic from IMS core 305(e.g., via PGW 310) and/or other network devices and may send thereceived traffic to BS 110 for processing and transmission to UE 120.For example, SGW 315 may receive real-time transport protocol (RTP)data, for example, such as H. 263, H.264 or H.265 (e.g., RTP dataconveying the streaming video via general packet radio service (GPRS)tunneling protocol (GTP)). In this case, SGW 315 may provide the RTPdata to BS 110 via GTP and RTP.

In some communications systems, such as Video Over 5G/NR (VoNR) or VideoOver LTE (ViLTE), a BS and a UE may communicate using full duplex voicewith either simplex or full duplex video streaming. The BS and UE mayenable a relatively high level of synchronization between the voice andvideo streaming (which may be referred to, collectively, as streamingcontent), thereby enabling video-calling, streaming entertainment,and/or the like. The BS may activate dedicated bearers for transport ofvideo and audio RTP traffic. The BS may assign different quality ofservice (QoS) levels for video (e.g., QoS class identifier (QCI) 2 forvideo) and audio (e.g., QCI 1 for audio), thereby providing somedifferentiation in reliability. For example, in this case, the BSprioritizes streaming audio, which may be delay and jitter sensitive,over streaming video, which may be less delay or jitter sensitive. Inother words, during a video-conference use case, a brief interruption toaudio from a speaker may be more disruptive to the video-conference thana brief interruption to video of the speaker.

However, at a medium access control (MAC) layer or physical (PHY) layer,the BS may perform procedures, such as scheduling, coding, modulation,multiplexing, orthogonal frequency division multiplexing (OFDM) symbolgeneration, and/or the like, agnostic of data that is being processed.In other words, the BS may process all data of a video stream withoutregard to what part of the video stream the data represents. As aresult, interruptions to data transmission may result in excessivelylarge effects to quality of experience (QoE) when the interruptionaffects a part of a video stream that has a large QoE effect.

Some aspects described herein provide video aware processing forstreaming video. For example, as described below, a communication device(e.g., a BS or a component of a BS) may classify portions of streamingvideo based at least in part on an effect of each portion on QoE for thestreaming video and may provide differential protection to portionsbased at least in part on the classification. In other words, thecommunication device may assign different portions of streaming video todifferent code blocks and/or transport blocks based at least in part onthe classification. For example, the communication device may generate afirst data stream for header data (e.g., RTP, user datagram protocol(UDP), IP header data), a second data stream for transparent operation,a third data stream for a first QoS classification, a fourth data streamfor a second QoS classification, and/or the like.

In this case, the communication device may provide differentialprotection to the different code blocks and/or transport blocks. In someaspects, the communication device may provide differential protection orreliability to different code blocks and/or transport blocks (e.g., thedata streams composed thereof) by applying different modulation schemeto some of code blocks and/or transport blocks thereof. For example, thecommunication device may determine a first code block, among a pluralityof code blocks, may include a first subset of plurality of videopackets, and a second code block, among a plurality of code blocks, mayinclude a second subset of plurality of video packets. The communicationdevice may further determine that the first subset of plurality of videopackets may have higher effect on the quality of service experience thanthat of the second subset of plurality of video packets. Additionally,the communication device may provide higher level of protection,reliability, or robustness to the first code block than the second codeblock. In one implementation, the communication device may providehigher level of protection, reliability, or robustness to the first codeblock by mapping data bits of the first code block to higher modulationsymbol bits (e.g. most significant bits (MSB) or bits closer to theMSB). Additionally, or alternatively, the communication device mayprovide lower level of protection, reliability, or robustness to thesecond code block by mapping data bits of the second code block to lowermodulation symbol bits (e.g. least significant bits (LSB) or bits closerto the LSB).

In another aspects, the communication device may provide differentialprotection or reliability to different code blocks and/or transportblocks (e.g., the data streams composed thereof) by applying unequalerror protection based modulation scheme (e.g., hierarchical modulation)to some of code blocks and/or transport blocks thereof. The details ofhierarchical modulation are presented later with respect to FIG. 6.Although some aspects are described herein in terms of streaming video,other types of streaming content are contemplated.

Communication device 320 may include BS 110 or be a component of BS 110.For example, communication device 320 may be a video processingcomponent that includes one or more of controller/processor 240,transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234,and/or the like of BS 110. As shown in FIG. 3, BS 110 may decomposeand/or transcode received packets (e.g., packets received from SGW 315)to identify underlying aspects of the data, such as different aspects ofthe streaming video (e.g., different video aspects, different audioaspects, and/or the like), as described in more detail herein. In thiscase, based on received RTP data (e.g., RTP H.264 payload data),communication device 320 may assign portions of the received data todifferent code blocks and/or transport blocks, provide differentmodulation schemes to the different code blocks and/or transport blocks,and optionally provide a set of data radio bearers (DRBs) based ondifferent code blocks and/or transport blocks. In this case, BS 110 mayprovide the video aware DRBs over the Uu interface to UE 120.

UE 120 may receive the video aware DRBs and via the Uu interface. UE 120may reconstruct the underlying RTP data (e.g., the RTP H.264 payloaddata) and process the underlying RTP data using a video decoder (e.g.,an RTP H.264 decoder) to obtain a decoded video stream. As indicatedabove, FIG. 3 is provided as an example. Other examples may differ fromwhat is described with respect to FIG. 3.

FIGS. 4A and 4B are diagrams illustrating examples 400 450 of blockproduction by a communication device to enable a BS to provide streamingvideo to a UE, in accordance with various aspects of the presentdisclosure.

As shown in FIG. 4A, a medium access control (MAC) entity of acommunication device may generate a transport block (e.g., based atleast in part on service data adaptation protocol (SDAP) blockgeneration, packet data convergence protocol (PDCP) block generation,and radio link control (RLC) block generation). For example, the MACentity may concatenate two RLC protocol data units (PDUs) from a firstradio bearer (RB_(x)) 410 and one RLC PDU from a second radio bearer(RB_(y)) 420. After concatenation, the communication device may addcyclic redundancy check (CRC) bits 425 and divide a transport block intoa plurality of code blocks. In this case, a first code block 430includes only data of the first radio bearer 410 whereas a second codeblock 440, for example, includes data 441 of the first radio bearer 410as well as data 442 of the second radio bearer 420. As a result, basedat least in part on data from a plurality of DRBs being multiplexed intoa common code block 440, the communication device (e.g. via MAC entityor PHY entity) provides the same QoS (e.g., the QoS of the common codeblock) for each radio bearer.

In contrast, as shown in FIG. 4B, a communication device (e.g., BS 110,communication device 320, and/or the like) may include a MAC entity thatmay determine a code block size 450. The code block size in accordancewith the present disclosure may refer to the size of code blocks usedfor channel coding. Channel coding within a PHY entity requires thatcode blocks to have specific sizes and that the maximum code block sizeis not exceeded. In some implementations, transport blocks, whichcomprise one or more MAC service data units (SDU) and CRC may besegmented to the code block size if needed. The MAC entity may determinethe code block size 450 based on information from other entities, forexample, such as a PHY entity or other higher entities. In this case,based at least in part on determining the code block size, the MACentity of the communication device may allocate RLC PDUs to code blocksize units, such that different code blocks may be mapped to obtaindifferent QoS, as described with respect to FIG. 4A. Additionally, oralternatively, a RLC entity may segment a RLC SDU (e.g., input datablock unit to an RLC entity) in a plurality of segmented RLC SDUs basedon the code block size 450. For example, the RLC entity may segment aregular size RLC SDU into a first RLC SDU segment 451 and a second RLCSDU segment 452 based on the code block size such that the MAC entitymay allocate RLC PDUs (e.g., MAC SDUs) to the code block size byconcatenating a first MAC SDU of regular size with a second MAC SDU ofsmaller size 460 comprising a segmented RLC SDU segment (e.g., SDUsegment #1 451).

In some aspects, as shown in FIG. 4B, the first code block 480 includesonly data from the first radio bearer (e.g., RBx 410) and the secondcode block 490 includes only data from the second radio bearer (e.g.,RBy 420). In this case, the communication device may include paddingbits to enable data of a radio bearer to fill an entire code block. Inthis way, based at least in part on ensuring that each radio bearer isin a separate code block from each other radio bearer, the communicationdevice enables QoE based video-aware processing without changing a layer1 (L1) block production procedure. In some implementation, As indicatedabove, FIGS. 4A and 4B is provided as an example. Other examples maydiffer from what is described with respect to FIGS. 4A and 4B.

FIGS. 5A and 5B are diagrams illustrating examples 500 550 of dataprocessing by a communication device to enable a BS to provide streamingvideo to a UE, in accordance with various aspects of the presentdisclosure.

As shown in FIG. 5A, a communication device (e.g., BS 110, communicationdevice 320) may decompose streaming content (e.g., streaming video) intoa plurality of portions associated with different characteristics toenable providing video aware DRBs. In some aspects, the communicationdevice (e.g., BS 110, communication device 320) may classify portions ofthe streaming content based at least in part on one or more videocharacteristics. The one or more video characteristics may relate to aneffect of a packet on a quality of experience of providing the streamingvideo content.

Video encoders such as H.263, H.264, H.265, VP9, or AV1 exploit theredundancy between video frames (e.g., inter-frame redundancy) and/orthe redundancy within a video frame (e.g., intra-frame redundancy) toachieve high-efficiency and high-quality video compression. Highlycompressed video encoded streams comprises a plurality of video encodedcomponents. These video streams are vulnerable to even a small number ofpacket loss due to communication channel errors to different degreedepending on the location of video encoded components. In other words,transmission errors occurred on certain fields within video streamingmay cause more quality degradation to overall video quality effect thanother fields within the video streaming.

In some example, Discreate Cosine Transformation (DCT) or any othersimilar time-to-frequency transformations, such as Inverse DCT (IDCT) orModified DCT (MDCT), have been frequently used in image compression andvideo compression for several decades due to their various superiorproperties associated with output transform coefficients. For example,it is well established principles that the lower frequency DCTcoefficients are more important as far as the effect on the videoquality experience than higher frequency DCT coefficients.

In another example, many advanced video compression algorithms applydifferent algorithms based on picture types or frame types. The threemajor video frame types used in video compressions are I-frame, P-frameand B-frame. I-frames do not normally exploit inter-frame redundancy andthus typically are the least compressible among these frames. I-frame,however, may have higher effect on the quality of video experiencebecause I-frame often used as a reference frame to either P-frame orB-frame. P-frames can use data from previous frames (e.g., typicallyfrom previous I-frames) to decompress and are more compressible thanI-frames. B-frames can use both previous (e.g., typically from previousI-frames or P-frames) and forward frames (e.g., typically from forwardP-frames) for data reference to get the highest amount of datacompression.

In some aspects, as shown in FIG. 5A, the communication device mayclassify portions of the streaming content based on an intra-codepicture (I-frame) category 501, a predicted picture (P-frame) category503, or a bidirectional predicted picture (B-frame) category 502. Theseare simply examples of categories that may be used. In practice, thecommunication device may classify the streaming content according to oneor more other types of heuristics, or one or more video characteristicsthat may have different effect on a quality of video experience. Thecommunication device may assign different portions of the streamingcontent to different DRBs for processing (e.g., for transport blockcyclic redundancy check (CRC) attachment, code block segmentation,channel coding, rate matching, code block concatenation, and/or thelike, as described in more detail herein).

In some aspects, the communication device, based at least in part onprocessing the plurality of DRBs, may attach, at CRC attachment stage505, CRC to each transport block of each DRB to provide an errordetection capability. The receiving communication device may use the CRCbits to determine whether or not the received transport blocks includeany bit errors introduced during wireless transmission of videostreaming.

In some aspects, the communication device, based at least in part onprocessing the plurality of DRBs, may optionally segment, at code blocksegmentation stage 510, at least some transport blocks and CRC bits forach DRB before channel coding to ensure each code block has anappropriate number of bits not exceeding the maximum code block size forchannel coding. The code block size in accordance with the presentdisclosure may refer to the size of code blocks used for channel coding.

In some aspects, the communication device, based at least in part onprocessing the plurality of DRBs, may apply, at channel coding stage515, to signal from the code block segmentation stage 510. For example,3GPP 5G NR provides Low Density Parity Check (LDPC) coding for PDSCH andPUSCH and Turbo coding has been used for PUSCH in 3GPP 4G LTE.

In some aspects, the communication device, based at least in part onprocessing the plurality of DRB s, may perform, rate matching procedure,at rate matching stage 520. The rate matching procedure processes eachchannel coded segment separately, typically, in 2 stages—bit selectionand bit reducing. Bit selection reduces the number of channel coded bitsto match the capacity of the allocated air-interface resources, and bitinterleaving reorders the bit sequence. Code block concatenation stage525 performs concatenating the set of code blocks into a single largercode block

As further shown in FIG. 5A, based at least in part on processing theplurality of DRB s, the communication device may perform multiplex theplurality of DRB s, modulate a multiplexed stream, perform resourcemapping, and perform orthogonal frequency division (OFDM) symbolgeneration to enable transmission of the plurality of DRB s withdifferential protection. More detailed description of these blocks isdescribed with respect to FIG. 5B.

Similarly, as shown in FIG. 5B, the communication device (e.g., BS 110,communication device 320) may assign different classifications of thestreaming content to different code blocks. For example, thecommunication device may assign I-frames to a first code block 551,P-frames to a second code block 552, B-frames to a third code block 553,and/or the like. Additionally, or alternatively, the communicationdevice may classify portions of the streaming content based at least inpart on other contemplated heuristics, or on other video characteristicsand assign different classifications to different code blocks of aphysical layer transport block.

In some aspects, the communication device may perform multiplexingfunction, at multiplexer stage 560, to a plurality of code blocks. Thisstage may not be required if there is no DCI to transfer.

In some aspects, the communication device may perform modulation, atmodulation stage 570, to the multiplexed code blocks. Modulationgenerally refers to process of changing bit sequence (‘1’ or ‘0’) into amodulation symbol sequence, which typically includes complex numbersrepresenting the set of modulation symbols). For example, pi/2 BPSK maps1 bit onto each modulation symbol. QPSK maps 2 bits onto each modulationsymbol; 16QAM maps 4 bits onto each modulation symbol; 64QAM maps 5 bitsonto each modulation symbol; and 256QAM maps 6 bits onto each modulationsymbol.

In this case, the communication device may provide differentialprotection to the different code blocks and/or transport blocks. Thecommunication device may provide differential protection or reliabilityto different code blocks and/or transport blocks (e.g., the data streamscomposed thereof) by applying different modulation scheme to some ofcode blocks and/or transport blocks thereof at multiplexer stage 560.For example, the communication device may determine a first code block,among a plurality of code blocks, may include a first subset ofplurality of video packets, and a second code block, among a pluralityof code blocks, may include a second subset of plurality of videopackets. The communication device may further determine that the firstsubset of plurality of video packets may have higher effect on thequality of service experience than that of the second subset ofplurality of video packets. As a non-limiting example, the first subsetof plurality of video packets may include video compressed data relatedwith I-frames and the second subset of plurality of video packets mayinclude video compressed data related with P-frames or B-frames.

Providing differential protection or reliability to different codeblocks and/or transport blocks (e.g., the data streams composed thereof)by applying different modulation scheme may be generally referred to asunequal error protection based modulation scheme. Hierarchicalmodulation, or layered modulation, which is described below in detailswith respect to FIG. 6 is one example of unequal error protection basedmodulation. Although some aspects are described herein in terms ofstreaming video, other types of streaming content are contemplated.

In some implementation, the communication device may provide higherlevel of protection, reliability, or robustness to the first code blockby mapping data bits of the first code block to higher modulation symbolbits (e.g. most significant bits (MSB) or bits closer to the MSB).Additionally, or alternatively, the communication device may providelower level of protection, reliability, or robustness to the second codeblock by mapping data bits of the second code block to lower modulationsymbol bits (e.g. least significant bits (LSB) or bits closer to theLSB).

In some aspects, the communication device may perform resource mapping,at resource mapping stage 580, to a plurality of modulated symbols.Resource mapping function involves mapping modulation symbols, generallypre-coded modulation symbols, onto the resource elements (REs) in theallocated resource blocks (RBs), for example, such as Physical ResourceBlocks (PRBs). These resource blocks are then used to generate OFDMsignal waveform, at OFDM signal generation stage 590. The waveform isthe baseband signal which is mixed to RF before being radiated ortransmitted, across the air-interface. For 3GPP NR, OFDM signalgeneration stage 590 may involve in generating CP-OFDM signal fordownlink signal transmission, and generating CP-OFDM or DFT-S-OFDM foruplink signal transmission. As indicated above, FIGS. 5A and 5B isprovided as examples. Other examples may differ from what is describedwith respect to FIGS. 5A and 5B.

FIG. 6 is a diagram illustrating an example 600 of a modulation schemeperformed, for example, by a communication device (e.g., BS 110,communication device 320), in accordance with various aspects of thepresent disclosure. In particular, FIG. 6 provides an illustrativeexample of hierarchical modulation.

Hierarchical modulation may indicate a signal processing technique formapping more important data stream to the modulated symbol MSB and lessimportant data stream to the modulated symbol LSB. Hierarchicalmodulation, also called layered modulation, may also indicate a signalprocessing technique for multiplexing and modulating multiple datastreams into one single symbol stream comprising base-layer symbols andenhancement-layer symbols that are synchronously overplayed beforetransmission. The base-layer symbols may be from more important datastream and the enhancement-layer symbols may be from less important datastream. With hierarchical modulation, a network operator can targetusers of different types with different services or QoS. As anon-limiting example, when hierarchical-modulated signals aretransmitted, users with good reception and advanced receivers candemodulate base-layer symbols as well as enhancement-layer symbols. Fora user with a conventional receiver or poor reception, it may onlydemodulate the symbols embedded in the base layer.

As shown in FIG. 6, the communication device may apply hierarchicalmodulation scheme to the first code block 551, the second code block552, and the like. generating exemplary 6-bit modulated symbols (“b1 b2b3 b4 b5 b6”). Additionally, the communication device (e.g., BS 110,communication device 320) may determine that the first code block 551may include vide packets that have higher effect on the quality ofservice experience than that of the second or the third code blocks 552553. As a non-limiting example, the first code block 551 may include aplurality of video packets containing I-frames, and the second codeblock 552 and the third code block 553 may include a plurality of videopackets containing P-frames and B-frames, respectively. The first twoMSB bits (“b1 b2”) may be the modulated symbol of the data streams fromthe first code block 551, and the next four LSB bits (“b3 b4 b5 b6”) maybe the modulated symbol of the data streams from either the second codeblock 552 or the third code block 553. The first 2 MSBs of modulatedsymbol (“b1 b2”) may be associated with a QPSK base layer and the next 4LSBs of the modulated symbol (“b3 b4 b5 b6”) may be associated with16QAM enhancement layer.

In some aspects, the communication device may determine the location orplacement of modulated symbol bits based at least in part on classifyinga first portion of the streaming content as having a relatively largeeffect on a quality of experience (QoE) (e.g., an absence of the firstportion of the streaming content reduces a usability of the streamingcontent more than an absence of other portions) or alternatively basedat least in part on classifying a second portion of the streamingcontent that has a relatively low effect on QoE. In this way, thecommunication device provides video aware processing of DRBs to enablegreater quality of service (QoS) for DRBs with higher levels of effecton QoE, thereby providing greater QoE at a UE 120 that is to receivestreaming content. FIG. 6 is provided as an example and other examplesmay differ from what is described with respect to FIG. 6.

FIG. 7 is a diagram illustrating an example process 700 performed, forexample, by a communication device, in accordance with various aspectsof the present disclosure. Example process 700 is an example where thecommunication device (e.g., BS 110 and/or the like) performs operationsassociated with video aware multiplexing for wireless transmission.

As shown in FIG. 7, in some aspects, process 700 may include classifyinga set of packets of streaming video content based at least in part onone or more video characteristics, wherein the one or more videocharacteristics relate to an effect of a packet on a quality ofexperience of providing the streaming video content (block 710). Forexample, the communication device (e.g., using controller/processor 240,transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234,and/or the like) may classify a set of packets of streaming videocontent based at least in part on one or more video characteristics, asdescribed above. In some aspects, the one or more video characteristicsmay be related to an effect of a packet on a quality of experience ofproviding the streaming video content.

As further shown in FIG. 7, in some aspects, process 700 may includegenerating a plurality of code blocks based at least in part onclassifying the plurality of packets. The plurality of code blocks mayinclude a first code block, which contains a first subset of theplurality of packets, and a second code block, which contains a secondsubset of the plurality of packets. The effect of the first subset ofthe plurality of packets on the quality of experience may be differentfrom the effect of the second subset of the plurality of packets on thequality of experience (block 720). For example, the communication device(e.g., using controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, and/or the like) may generate aplurality of code blocks based at least in part on classifying theplurality of packets, as described above. For example, the communicationdevice may generate a plurality of code blocks based on intra-codepicture (I-frame) category 501, a predicted picture (P-frame) category503, or a bidirectional predicted picture (B-frame) category 502. Theseare simply non-limiting examples of categories that may be used. Inpractice, the communication device may generate a plurality of codeblocks based on one or more other types of heuristics, or on one or morevideo characteristics that may have different effect on a quality ofvideo experience.

As further shown in FIG. 7, in some aspects, process 700 may includeproviding the plurality of code blocks for transmission (block 730). Forexample, the communication device (e.g., using controller/processor 240,transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234,and/or the like) may provide the plurality of code blocks as describedabove with respect to FIGS. 5A, 5B, and 6. Although FIG. 7 shows exampleblocks of process 700, in some aspects, process 700 may includeadditional blocks, fewer blocks, different blocks, or differentlyarranged blocks than those depicted in FIG. 7. Additionally, oralternatively, two or more of the blocks of process 700 may be performedin parallel.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseform disclosed. Modifications and variations may be made in light of theabove disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, and/or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, and/or acombination of hardware and software. As used herein, satisfying athreshold may, depending on the context, refer to a value being greaterthan the threshold, greater than or equal to the threshold, less thanthe threshold, less than or equal to the threshold, equal to thethreshold, not equal to the threshold, and/or the like.

It will be apparent that systems and/or methods described herein may beimplemented in different forms of hardware, firmware, and/or acombination of hardware and software. The actual specialized controlhardware or software code used to implement these systems and/or methodsis not limiting of the aspects. Thus, the operation and behavior of thesystems and/or methods were described herein without reference tospecific software code—it being understood that software and hardwarecan be designed to implement the systems and/or methods based, at leastin part, on the description herein.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. A phrase referring to “at least oneof” a list of items refers to any combination of those items, includingsingle members. As an example, “at least one of: a, b, or c” is intendedto cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combinationwith multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c,a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering ofa, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems, and may be used interchangeably with “one or more.” Furthermore,as used herein, the terms “set” and “group” are intended to include oneor more items (e.g., related items, unrelated items, a combination ofrelated and unrelated items, and/or the like), and may be usedinterchangeably with “one or more.” Where only one item is intended, thephrase “only one” or similar language is used. Also, as used herein, theterms “has,” “have,” “having,” and/or the like are intended to beopen-ended terms. Further, the phrase “based on” is intended to mean“based, at least in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A method of wireless communication performed by acommunication device, comprising: classifying a plurality of packets ofstreaming video content based at least in part on one or more videocharacteristics, wherein the one or more video characteristics relate toan effect of a packet on a quality of experience of providing thestreaming video content; generating a plurality of code blocks based atleast in part on classifying the plurality of packets, wherein a firstcode block, of the plurality of code blocks, includes a first subset ofthe plurality of packets and a second code block, of the plurality ofcode blocks, includes a second subset of the plurality of packets,wherein the effect of the first subset of the plurality of packets onthe quality of experience is different from the effect of the secondsubset of the plurality of packets on the quality of experience; andproviding the plurality of code blocks for transmission, whereinproviding the plurality of code blocks for transmission comprises:mapping a plurality of data of the first code block to first modulationsymbol bits; and mapping a plurality of data of the second code block tosecond modulation symbol bits, wherein the first modulation symbol bitscomprise most significant bit (MSB) of the modulation symbol and thesecond modulation symbol bits comprise least significant bit (LSB) ofthe modulation symbol.
 2. The method of claim 1, wherein providing theplurality of code blocks for transmission comprises applyinghierarchical modulation on the first and the second code blocks.
 3. Themethod of claim 1, further comprising: identifying, at a media accesscontrol (MAC) layer, a code block size for a code block; and allocatinga radio link control (RLC) block to the code block based at least inpart on the code block size.
 4. The method of claim 3, whereinallocating the RLC block to the code block comprises: processing, at aRLC layer, a first RLC service data unit (SDU) to generate a first RLCprotocol data unit (PDU); segmenting, at the RLC layer, a second RLC SDUbased on the code block size to generate a second RLC PDU; andgenerating, at the MAC layer, a first MAC protocol data unit (PDU) basedon a first MAC service data unit (SDU) and a second MAC SDU, wherein thefirst MAC SDU comprises the first RLC PDU and the second MAC SDUcomprises the second RLC PDU.
 5. The method of claim 3, wherein the codeblock includes a single data radio bearer including one or more codeblocks of the plurality of code blocks.
 6. The method of claim 1,wherein classifying the plurality of packets of streaming video contentcomprises classifying the plurality of packets of streaming video basedat least in part on information associated with a plurality of videoframes, wherein the information associated with the plurality of videoframes indicates each video frame among the plurality of video framesencoded based on one among an intra-code picture frame (I-frame), apredicted picture frame (P-frame), and a bidirectional predicted pictureframe (B-frame).
 7. The method of claim 6, wherein the first code blockcomprises a first plurality of video frames encoded based on theintra-code picture frame (I-frame), and the second code block comprisesa second plurality of video frames encoded based on the predictedpicture frame (P-frame) or the bidirectional predicted picture frame(B-frame).
 8. The method of claim 1, wherein providing the plurality ofcode blocks for transmission comprises applying unequal error protectionbased modulation to transport blocks.
 9. The method of claim 8, whereinapplying unequal error protection based modulation to transport blockscomprises: applying a first error protection based modulation to a firsttransport block; and applying a second error protection based modulationto a second transport block, wherein the first error protection basedmodulation is different from a second error protection based modulation.10. An apparatus for wireless communication, comprising: means forclassifying a plurality of packets of streaming video content based atleast in part on one or more video characteristics, wherein the one ormore video characteristics relate to an effect of a packet on a qualityof experience of providing the streaming video content; means forgenerating a plurality of code blocks based at least in part onclassifying the plurality of packets, wherein a first code block, of theplurality of code blocks, includes a first subset of the plurality ofpackets and a second code block, of the plurality of code blocks,includes a second subset of the plurality of packets, wherein the effectof the first subset of the plurality of packets on the quality ofexperience is different from the effect of the second subset of theplurality of packets on the quality of experience; and means forproviding the plurality of code blocks for transmission, wherein themeans for providing the plurality of code blocks for transmissioncomprises: means for mapping a plurality of data of the first code blockto first modulation symbol bits; and means for mapping a plurality ofdata of the second code block to second modulation symbol bits, whereinthe first modulation symbol bits comprise most significant bit (MSB) ofthe modulation symbol and the second modulation symbol bits compriseleast significant bit (LSB) of the modulation symbol.
 11. The apparatusof claim 10, wherein the means for providing the plurality of codeblocks for transmission comprises means for applying hierarchicalmodulation on the first and the second code blocks.
 12. The apparatus ofclaim 10, further comprising: means for identifying, at a media accesscontrol (MAC) layer, a code block size for a code block; and means forallocating a radio link control (RLC) block to the code block based atleast in part on the code block size.
 13. The apparatus of claim 12,wherein the means for allocating the RLC block to the code blockcomprises: means for processing a first RLC service data unit (SDU) togenerate a first RLC protocol data unit (PDU); means for segmenting asecond RLC SDU based on the code block size to generate a second RLCPDU; and means for generating a first MAC protocol data unit (PDU) basedon a first MAC service data unit (SDU) and a second MAC SDU, wherein thefirst MAC SDU comprises the first RLC PDU and the second MAC SDUcomprises the second RLC PDU.
 14. The apparatus of claim 12, wherein thecode block includes a single data radio bearer including one or morecode blocks of the plurality of code blocks.
 15. The apparatus of claim10, wherein the means for classifying the plurality of packets ofstreaming video content is based at least in part on informationassociated with a plurality of video frames, wherein the informationassociated with the plurality of video frames indicates each video frameamong the plurality of video frames encoded based on one among anintra-code picture frame (I-frame), a predicted picture frame (P-frame),and a bidirectional predicted picture frame (B-frame).
 16. The apparatusof claim 15, wherein the first code block comprises a first plurality ofvideo frames encoded based on the intra-code picture frame (I-frame),and the second code block comprises a second plurality of video framesencoded based on the predicted picture frame (P-frame) or thebidirectional predicted picture frame (B-frame).
 17. The apparatus ofclaim 10, wherein the means for providing the plurality of code blocksfor transmission comprises means for applying unequal error protectionbased modulation to transport blocks.
 18. The apparatus of claim 17,wherein the means for applying unequal error protection based modulationto transport blocks comprises: means for applying a first errorprotection based modulation to a first transport block; and means forapplying a second error protection based modulation to a secondtransport block, wherein the first error protection based modulation isdifferent from a second error protection based modulation.
 19. Anapparatus for wireless communication, comprising: one or moreprocessors; memory coupled with the one or more processors; andinstructions stored in the memory and executable by the one or moreprocessors to cause the apparatus to: classify a plurality of packets ofstreaming video content based at least in part on one or more videocharacteristics, wherein the one or more video characteristics relate toan effect of a packet on a quality of experience of providing thestreaming video content; generate a plurality of code blocks based atleast in part on classifying the plurality of packets, wherein a firstcode block, of the plurality of code blocks, includes a first subset ofthe plurality of packets and a second code block, of the plurality ofcode blocks, includes a second subset of the plurality of packets,wherein the effect of the first subset of the plurality of packets onthe quality of experience is different from the effect of the secondsubset of the plurality of packets on the quality of experience; map aplurality of data of the first code block to first modulation symbolbits; and map a plurality of data of the second code block to secondmodulation symbol bits, wherein the first modulation symbol bitscomprise most significant bit (MSB) of the modulation symbol and thesecond modulation symbol bits comprise least significant bit (LSB) ofthe modulation symbol.
 20. The apparatus of claim 19, wherein the memoryfurther comprises instructions that, when executed by the one or moreprocessors, cause the apparatus to apply hierarchical modulation on thefirst and the second code blocks.
 21. The apparatus of claim 19, whereinthe memory further comprises instructions that, when executed by the oneor more processors, cause the apparatus to: identify, at a media accesscontrol (MAC) layer, a code block size for a code block; and allocate aradio link control (RLC) block to the code block based at least in parton the code block size.
 22. The apparatus of claim 21, wherein thememory further comprises instructions that, when executed by the one ormore processors, cause the apparatus to: process a first RLC servicedata unit (SDU) to generate a first RLC protocol data unit (PDU);segment a second RLC SDU based on the code block size to generate asecond RLC PDU; and generate a first MAC protocol data unit (PDU) basedon a first MAC service data unit (SDU) and a second MAC SDU, wherein thefirst MAC SDU comprises the first RLC PDU and the second MAC SDUcomprises the second RLC PDU.